- Diamond and Carbon-based Materials Research
- Carbon Nanotubes in Composites
- Fullerene Chemistry and Applications
- Force Microscopy Techniques and Applications
- Agriculture and Biological Studies
- Laser-Ablation Synthesis of Nanoparticles
- Metal and Thin Film Mechanics
- Crystallization and Solubility Studies
- Advanced Fiber Laser Technologies
- Graphene research and applications
- Electrospun Nanofibers in Biomedical Applications
- Bone Tissue Engineering Materials
- Chemistry and Chemical Engineering
- X-ray Diffraction in Crystallography
- Mass Spectrometry Techniques and Applications
- Advanced Chemical Physics Studies
- Photochemistry and Electron Transfer Studies
- Ion-surface interactions and analysis
- High-pressure geophysics and materials
- Semiconductor materials and devices
- Orthopaedic implants and arthroplasty
- Molecular Junctions and Nanostructures
- Cyclization and Aryne Chemistry
- Electronic and Structural Properties of Oxides
- Graphene and Nanomaterials Applications
University of Stuttgart
2007-2025
Institute of Organic Chemistry
2014-2025
University of Würzburg
2015-2024
Carl Zeiss (Germany)
2024
Carl Zeiss Foundation
2024
Italian Institute of Technology
2022
University of Hohenheim
2016-2018
Heidelberg University
2017
Leibniz Institute for High Performance Microelectronics
2017
Graz University of Technology
2016
Abstract Nanoscale diamond has recently received considerable attention due to the various possible applications such as luminescence imaging, drug delivery, quantum engineering, surface coatings, seeding etc. For most of these fields a suitable termination and functionalization materials are required. In this feature article we discuss recent achievements in field modification nanoscale including establishment homogeneous initial termination, covalent non‐covalent immobilization different...
Nanoscale diamond particles have become an interesting material. Due to their inertness, small size and surface structure, they are well-suited for biological applications, such as labelling drug delivery. Here we discuss the structure functionalisation of nanoparticles. Non-covalent well covalent grafting bioactive moieties is possible, first applications fluorescent nanoparticles described.
Abstract Nanodiamond materials have become broadly available. Their synthesis is usually carried out by explosion or shock wave methods. They exhibit a unique surface structure and can be functionalized in various ways. This opens broad range of applications composites, biological systems, electronics, technology.
Diamond nanoparticles are another form of carbon nanomaterials with unique properties and applications. This article discusses the progress made in production, characterisation functionalisation this material. The surface structure nanodiamond allows for investigation chemical modifications particle leading to new materials composite, biomedical or electronic
The fluorescence and motional dynamics of single diamond nanocrystals in buffer solution living cells is investigated. Stable hydrosols nanodiamonds solutions are investigated by correlation spectroscopy. Measurement the effective hydrodynamic radius yields particles 48 nm diameter, which excellent agreement with atomic force microscopy measurements made on same particles. Fluorescence spectroscopy indicate that easily form aggregates when pH changed. This tendency reduced surface diamonds...
Upon reduction of particle size to the nanometer range, one has deal with general issue spontaneous agglomeration, which often obstructs postsynthesis modification nanoparticle surfaces. A technique cope this phenomenon is required realize a wide variety applications using nanoparticles in solvents or as refined assemblies. In article, we report on new facilitate surface chemistry conventional glassware system. beads-assisted sonication (BASD) process was examined break up persistent...
We have developed a simple and efficient method for the covalent functionalization of detonation nanodiamond. After homogenization surface by borane reduction, was modified with (3-aminopropyl)trimethoxysilane. Subsequent grafting biotin yielded covalently biotinylated nanodiamond, which characterized FTIR spectroscopy, X-ray powder diffractometry, thermogravimetry, elemental analysis. The activity tested horseradish peroxidase-labeled streptavidin. loading found to be 1.45 mmol g-1. new...
A diamond nano-crystal hosting a single nitrogen vacancy (NV) center is optically selected with confocal scanning microscope and positioned deterministically onto the subwavelength-diameter waist of tapered optical fiber (TOF) help an atomic force microscope. Based on this nano-manipulation technique, we experimentally demonstrate evanescent coupling fluorescence photons emitted by NV-center to guided mode TOF. By comparing photon count rates fiber-guided free-space modes numerical...
In the past few years a variety of new fields for use nanoscale diamond have emerged. this report newly developed applications such as nanodiamond in composites or catalytic, electrochemical and biomedical purposes are discussed. Furthermore, can be used sensitive stable luminescent label when suitable lattice defects present nanoparticles. Those also basis magnetic quantum carbon material.
A low dose of 1μg rhBMP-2 was immobilised by four different functionalising techniques on recently developed poly(l-lactide)-co-(ε-caprolactone) [(poly(LLA-co-CL)] scaffolds. It either (i) physisorbed unmodified scaffolds [PHY], (ii) onto modified with nanodiamond particles [nDP-PHY], (iii) covalently linked nDPs that were used to modify the [nDP-COV] or (iv) encapsulated in microspheres distributed [MICS]. Release kinetics BMP-2 from quantified using targeted mass spectrometry for up...
Sources of individual photons have applications in quantum cryptography, computation, and metrology, but truly scalable sources are still needed. The authors couple silicon-vacancy centers to a high-$Q$ microcavity, yielding room-temperature source with the potential for high efficiency, brightness, spectral purity. This setup improves density by more than two orders magnitude could offer single-photon rates above 1 GHz, as well generation indistinguishable photons.
Abstract In this paper we present our recent results on the production of primary particles detonation diamond from strongly bound agglomerates using beads milling and newly developed BASD (bead assisted sonic disintegration) method in various media. Additionally, surface functionalisation starting hydroxyl groups is discussed. These can be introduced by reductive homogenisation borane. Further includes grafting silanes amino acids. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Abstract Click chemistry is one of the most versatile means for efficient grafting larger units such as fluorescence labels or biomolecules onto surface nanoparticles. Here, a first study on applicability different strategies copper‐catalyzed azide–alkyne coupling diamond nanoparticles and organic moieties reported. Both thermally annealed nanodiamond mechanically pretreated origin can be modified with carrying either azide alkyne groups. Several have been efficiently “clicked” these...
The copper-catalyzed 1,3-dipolar azide–alkyne cycloaddition (CuAAC) was used for the first time to attach a biologically active carbon monoxide delivery agent modified nanodiamond (ND) as highly biocompatible carrier. [Mn(CO)3(tpm)]+ photoactivatable CO-releasing molecule (PhotoCORM) on surface retained release properties of parent compound shown with myoglobin assay.
Abstract The detection and removal of bacteria, such as E. coli in aqueous environments by using safe readily available means is high importance. Here we report on the synthesis nanodiamonds (ND) covalently modified with specific carbohydrates (glyco–ND) for precipitation type 1 fimbriated uropathogenic solution mechanically stable agglutination. surface diamond nanoparticles was a Diels–Alder reaction followed covalent grafting respective glycosides. resulting glyco–ND samples are fully...
The production of boron-doped diamond nanoparticles enables the application this material for a broad range fields, such as electrochemistry, thermal management, and fundamental superconductivity research. Here we present highly using CVD films starting material. In multistep milling process followed by purification surface oxidation obtained 10–60 nm with boron content approximately 2.3 × 1021 cm–3. Aberration-corrected HRTEM reveals presence defects within individual grains, well very thin...
We report on the production of nanodiamonds (NDs) with 70-80 nm size via bead assisted sonic disintegration (BASD) a polycrystalline chemical vapor deposition (CVD) film. The NDs display high crystalline quality as well intense narrowband (7 nm) room temperature luminescence at 738 due to in situ incorporated silicon vacancy (SiV) centers. fluorescence properties and cryogenic temperatures indicate that are, depending preparation, applicable single photon sources or labels.
The silicon-vacancy (SiV) color center in diamond is a solid-state single photon emitter and spin quantum bit suited as component devices. Here, we show that the SiV nanodiamond exhibits strongly inhomogeneous distribution with regard to wavelengths linewidths of zero-phonon-line (ZPL) emission at room temperature. We find centers separate two clusters: one group ZPLs within narrow range approximatly 730 nm 742 broad between 5 17 nm, whereas second comprises very 715 835 but from below 1 up...
Stable covalent C-C bonding of aromatic moieties has been achieved using Diels-Alder reactions on surface-annealed nanodiamond. Subsequent functionalisation leads to tunable surface properties and molecule-like behaviour.
Significant evidence has indicated that poly(L-lactide)-co-(ɛ-caprolactone) [(poly(LLA-co-CL)] scaffolds could be one of the suitable candidates for bone tissue engineering. Oxygen-terminated nanodiamond particles (n-DP) were combined with poly(LLA-co-CL) and revealed to positive cell growth. In this study, we evaluated influence modified by n-DP on attachment, proliferation, differentiation marrow stromal cells (BMSCs) in vitro, formation using a sheep calvarial defect model. BMSCs seeded...